static bool IsPointWallsExceptSource(IMapView <bool> map, Coord location, Direction sourceDirection)
{
// exclude the outside of the map
var mapInner = map.Bounds().Expand(-1, -1);
if (!mapInner.Contains(location))
{
// Shortcut out if this location is part of the map edge.
//if (IsPointMapEdge(location) || IsPointPartOfRegion(location, true))
return(false);
}
// Get map indexes for all surrounding locations
var index = AdjacencyRule.EIGHT_WAY.DirectionsOfNeighborsClockwise().ToArray();
Direction[] skipped;
if (sourceDirection == Direction.RIGHT)
{
skipped = new[] { sourceDirection, Direction.UP_RIGHT, Direction.DOWN_RIGHT }
}
;
else if (sourceDirection == Direction.LEFT)
{
skipped = new[] { sourceDirection, Direction.UP_LEFT, Direction.DOWN_LEFT }
}
;
else if (sourceDirection == Direction.UP)
{
skipped = new[] { sourceDirection, Direction.UP_RIGHT, Direction.UP_LEFT }
}
;
else
{
skipped = new[] { sourceDirection, Direction.DOWN_RIGHT, Direction.DOWN_LEFT }
};
for (int i = 0; i < index.Length; i++)
{
if (skipped[0] == index[i] || skipped[1] == index[i] || skipped[2] == index[i])
{
continue;
}
//if (index[i] == -1)
// return false;
if (!map.Bounds().Contains(location + index[i]) || map[location + index[i]])
{
return(false);
}
}
return(true);
}
static bool IsPointSurroundedByWall(IMapView <bool> map, Coord location)
{
var points = AdjacencyRule.EIGHT_WAY.Neighbors(location);
var mapBounds = map.Bounds();
foreach (var point in points)
{
if (!mapBounds.Contains(point))
{
return(false);
}
if (map[point])
{
return(false);
}
}
return(true);
}
/// <summary>
/// Constructor. Takes the MapView to represent. Initial ViewArea will be the entire MapView.
/// </summary>
/// <param name="mapView">The MapView to represent.</param>
public Viewport(IMapView <T> mapView)
: this(mapView, mapView.Bounds())
{
}
/// <summary>
/// Constructor. Takes the MapView to represent, and the initial ViewArea for that map.
/// </summary>
/// <param name="mapView">The map view being represented.</param>
/// <param name="viewArea">The initial ViewArea for that map.</param>
public Viewport(IMapView <T> mapView, Rectangle viewArea)
{
MapView = mapView;
_boundedRect = new BoundedRectangle(viewArea, MapView.Bounds());
}
/// <summary>
/// Constructor. Takes the MapView to represent. Initial ViewArea will be the entire MapView.
/// </summary>
/// <param name="mapView">The MapView to represent.</param>
/// <param name="defaultValue">The value to return if a position is accessed that is outside the actual underlying map view.</param>
public UnboundedViewport(IMapView <T> mapView, T defaultValue = default(T))
: this(mapView, mapView.Bounds(), defaultValue)
{
}